Media SDK 21.2.3

This release of Intel® Media SDK is part of open source release of media stack. Component revisions included into package:

• Media SDK and Samples: https://github.com/Intel-Media-SDK/MediaSDK/releases/tag/intel-mediasdk-21.2.3
• Driver: https://github.com/intel/media-driver/releases/tag/intel-media-21.2.3
• Gmmlib: https://github.com/intel/gmmlib/releases/tag/intel-gmmlib-21.2.1
• libva: https://github.com/intel/libva/releases/tag/2.12.0
• libva-utils: https://github.com/intel/libva-utils/releases/tag/2.12.0

Release validated with:

• OpenCL runtime: https://github.com/intel/compute-runtime/releases/tag/21.24.20098 (re-built against intel-gmmlib-21.2.1)

Documentation
Documentation for this release published in release branch.

What’s New in Media SDK 21.2.3

New features:

• JPEG Decode

  • improved processing of invalid headers.

• HEVC Encode

  • Enabled GPU wighted prediction.

• Samples

  • Added encoding target bit depth for luna and chroma samples parameters (-TargetBitDepthLuma/-TargetBitDepthChroma) for sample_encode and sample_multi_transcode.
  • Added -tcbrctestfile parameter for TCBRC in sample_encode.
  • Added parameter to specify scaling mode (lowpower/quality) for VPP in sample_decode and sample_multi_transcode.

• Misc

  • Added linux build with clang 12 for GitHub Actions.
  • Switched to C++ 14 standard.

• Software requirements

  • Libdrm 2.4.84 or later
  • Kernel 4.14 or later (5.4 recommended, consult kernel support matrix wiki page for details)

• Known issues

  • Kernel 5.0 have known issue with endurance on Skylake see https://bugs.freedesktop.org/show_bug.cgi?id=110285 for details.
  • Media Driver may incorrect report frame QP in Media Stack 21.2.3 for HEVC FEI. See intel/media-driver#1171 for details.

Windows support
Samples and dispatcher API 1.35 supported by Windows Intel(r) graphics driver since 27.20.100.8935 version.

• Limited support on certain platforms:
  • MPEG-2 encode is not supported on Apollo Lake
  • H.264 Flexible Encode Infrastructure only supported on Broadwell and Skylake
  • Multi Frame Encode (MFE), HEVC Flexible Encode Infrastructure only supported on Skylake
  • VP9 decoder is supported starting from Kabylake platform
  • VP9 encoder is supported starting from Icelake platform
  • SW fallback is unsupported for all components but MJPEG
  • Keem Bay requires a VPU runtime library
  • The following features are supported by Keem Bay runtime and are not supported by Gen graphics runtime:
    • mfxExtInsertHeaders
    • mfxExtEncoderIPCMArea